/* $OpenLDAP$ */
/*
- * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/*
- * lutil_password(credentials, password)
+ * int lutil_passwd(
+ * const struct berval *passwd,
+ * const struct berval *cred,
+ * const char **schemes )
*
- * Returns true if user supplied credentials matches
- * the stored password.
+ * Returns true if user supplied credentials (cred) matches
+ * the stored password (passwd).
*
* Due to the use of the crypt(3) function
* this routine is NOT thread-safe.
#include "portable.h"
+#include <stdio.h>
#include <ac/stdlib.h>
-
#include <ac/string.h>
-#include <ac/unistd.h>
-#include <ac/crypt.h>
-#include <lber.h>
+#ifdef SLAPD_SPASSWD
+# include <sasl.h>
+#endif
-#include "lutil_md5.h"
-#include "lutil_sha1.h"
-#include "lutil.h"
+#ifdef SLAPD_KPASSWD
+# include <ac/krb.h>
+# include <ac/krb5.h>
+#endif
+
+#include <ac/param.h>
+
+#include <ac/unistd.h>
+#include <ac/crypt.h>
#ifdef HAVE_SHADOW_H
# include <shadow.h>
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
+#ifdef HAVE_AIX_SECURITY
+# include <userpw.h>
+#endif
+
+#include <lber.h>
+
+#include "ldap_pvt.h"
+
+#include "lutil_md5.h"
+#include "lutil_sha1.h"
+#include "lutil.h"
+
+static const unsigned char crypt64[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890./";
struct pw_scheme;
typedef int (*PASSWD_CHK_FUNC)(
const struct pw_scheme *scheme,
- const char *passwd,
- const char *cred );
+ const struct berval *passwd,
+ const struct berval *cred );
-typedef char * (*PASSWD_GEN_FUNC) (
+typedef struct berval * (*PASSWD_HASH_FUNC) (
const struct pw_scheme *scheme,
- const char *passwd );
+ const struct berval *passwd );
struct pw_scheme {
- char *name;
- size_t namelen;
+ struct berval name;
PASSWD_CHK_FUNC chk_fn;
- PASSWD_GEN_FUNC gen_fn;
+ PASSWD_HASH_FUNC hash_fn;
};
/* password check routines */
static int chk_md5(
const struct pw_scheme *scheme,
- const char *passwd,
- const char *cred );
+ const struct berval *passwd,
+ const struct berval *cred );
static int chk_smd5(
const struct pw_scheme *scheme,
- const char *passwd,
- const char *cred );
+ const struct berval *passwd,
+ const struct berval *cred );
static int chk_ssha1(
const struct pw_scheme *scheme,
- const char *passwd,
- const char *cred );
+ const struct berval *passwd,
+ const struct berval *cred );
static int chk_sha1(
const struct pw_scheme *scheme,
- const char *passwd,
- const char *cred );
+ const struct berval *passwd,
+ const struct berval *cred );
+#ifdef SLAPD_SPASSWD
+static int chk_sasl(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *cred );
+#endif
+
+#ifdef SLAPD_KPASSWD
+static int chk_kerberos(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *cred );
+#endif
+
+#ifdef SLAPD_CRYPT
static int chk_crypt(
const struct pw_scheme *scheme,
- const char *passwd,
- const char *cred );
+ const struct berval *passwd,
+ const struct berval *cred );
+#if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
static int chk_unix(
const struct pw_scheme *scheme,
- const char *passwd,
- const char *cred );
+ const struct berval *passwd,
+ const struct berval *cred );
+#endif
+#endif
-/* password generation routines */
-static char *gen_sha1(
+/* password hash routines */
+static struct berval *hash_sha1(
const struct pw_scheme *scheme,
- const char *passwd );
+ const struct berval *passwd );
-static char *gen_ssha1(
+static struct berval *hash_ssha1(
const struct pw_scheme *scheme,
- const char *passwd );
+ const struct berval *passwd );
-static char *gen_smd5(
+static struct berval *hash_smd5(
const struct pw_scheme *scheme,
- const char *passwd );
+ const struct berval *passwd );
-static char *gen_md5(
+static struct berval *hash_md5(
const struct pw_scheme *scheme,
- const char *passwd );
+ const struct berval *passwd );
-static char *gen_crypt(
+#ifdef SLAPD_CRYPT
+static struct berval *hash_crypt(
const struct pw_scheme *scheme,
- const char *passwd );
+ const struct berval *passwd );
+#endif
static const struct pw_scheme pw_schemes[] =
{
- { "{SSHA}", sizeof("{SSHA}")-1, chk_ssha1, gen_ssha1 },
- { "{SHA}", sizeof("{SHA}")-1, chk_sha1, gen_sha1 },
+ { {sizeof("{SSHA}")-1, "{SSHA}"}, chk_ssha1, hash_ssha1 },
+ { {sizeof("{SHA}")-1, "{SHA}"}, chk_sha1, hash_sha1 },
- { "{SMD5}", sizeof("{SMD5}")-1, chk_smd5, gen_smd5 },
- { "{MD5}", sizeof("{MD5}")-1, chk_md5, gen_md5 },
+ { {sizeof("{SMD5}")-1, "{SMD5}"}, chk_smd5, hash_smd5 },
+ { {sizeof("{MD5}")-1, "{MD5}"}, chk_md5, hash_md5 },
-#ifdef SLAPD_CRYPT
- { "{CRYPT}", sizeof("{CRYPT}")-1, chk_crypt, gen_crypt },
+#ifdef SLAPD_SPASSWD
+ { {sizeof("{SASL}")-1, "{SASL}"}, chk_sasl, NULL },
#endif
-# if defined( HAVE_GETSPNAM ) \
- || ( defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD ) )
- { "{UNIX}", sizeof("{UNIX}")-1, chk_unix, NULL },
+
+#ifdef SLAPD_KPASSWD
+ { {sizeof("{KERBEROS}")-1, "{KERBEROS}"}, chk_kerberos, NULL },
+#endif
+
+#ifdef SLAPD_CRYPT
+ { {sizeof("{CRYPT}")-1, "{CRYPT}"}, chk_crypt, hash_crypt },
+# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
+ { {sizeof("{UNIX}")-1, "{UNIX}"}, chk_unix, NULL },
+# endif
#endif
#ifdef SLAPD_CLEARTEXT
/* psuedo scheme */
- { "{CLEARTEXT}", 0, NULL, NULL },
+ { {0, "{CLEARTEXT}"}, NULL, NULL },
#endif
- NULL,
+ { {0, NULL}, NULL, NULL }
};
static const struct pw_scheme *get_scheme(
{
int i;
- for( i=0; pw_schemes[i].name != NULL; i++) {
- if( pw_schemes[i].namelen == 0 ) continue;
+ for( i=0; pw_schemes[i].name.bv_val; i++) {
+ if( pw_schemes[i].name.bv_len == 0 ) continue;
- if( strncasecmp(scheme, pw_schemes[i].name,
- pw_schemes[i].namelen) == 0 )
+ if( strncasecmp(scheme, pw_schemes[i].name.bv_val,
+ pw_schemes[i].name.bv_len) == 0 )
{
return &pw_schemes[i];
}
return NULL;
}
+int lutil_passwd_scheme(
+ const char* scheme )
+{
+ if( scheme == NULL ) {
+ return 0;
+ }
+
+ return get_scheme(scheme) != NULL;
+}
+
static int is_allowed_scheme(
const char* scheme,
return 0;
}
-static const char *passwd_scheme(
+static struct berval *passwd_scheme(
const struct pw_scheme *scheme,
- const char* passwd,
+ const struct berval * passwd,
const char** allowed )
{
- if( !is_allowed_scheme( scheme->name, allowed ) ) {
+ if( !is_allowed_scheme( scheme->name.bv_val, allowed ) ) {
return NULL;
}
- if( strncasecmp( passwd, scheme->name, scheme->namelen ) == 0 ) {
- return &passwd[scheme->namelen];
+ if( passwd->bv_len >= scheme->name.bv_len ) {
+ if( strncasecmp( passwd->bv_val, scheme->name.bv_val, scheme->name.bv_len ) == 0 ) {
+ struct berval *bv = ber_memalloc( sizeof(struct berval) );
+
+ if( bv == NULL ) return NULL;
+
+ bv->bv_val = &passwd->bv_val[scheme->name.bv_len];
+ bv->bv_len = passwd->bv_len - scheme->name.bv_len;
+
+ return bv;
+ }
}
return NULL;
*/
int
lutil_passwd(
- const char *passwd, /* stored passwd */
- const char *cred, /* user cred */
+ const struct berval *passwd, /* stored passwd */
+ const struct berval *cred, /* user cred */
const char **schemes )
{
int i;
- if (cred == NULL || passwd == NULL) {
+ if (cred == NULL || cred->bv_len == 0 ||
+ passwd == NULL || passwd->bv_len == 0 )
+ {
return -1;
}
- for( i=0; pw_schemes[i].name != NULL; i++ ) {
+ for( i=0; pw_schemes[i].name.bv_val != NULL; i++ ) {
if( pw_schemes[i].chk_fn ) {
- const char *p = passwd_scheme( &pw_schemes[i],
+ struct berval *p = passwd_scheme( &pw_schemes[i],
passwd, schemes );
if( p != NULL ) {
- return (pw_schemes[i].chk_fn)( &pw_schemes[i], p, cred );
+ int rc = (pw_schemes[i].chk_fn)( &pw_schemes[i], p, cred );
+
+ /* only free the berval structure as the bv_val points
+ * into passwd->bv_val
+ */
+ ber_memfree( p );
+
+ return rc;
}
}
}
#ifdef SLAPD_CLEARTEXT
if( is_allowed_scheme("{CLEARTEXT}", schemes ) ) {
- return strcmp( cred, passwd );
+ return passwd->bv_len == cred->bv_len
+ ? memcmp( passwd->bv_val, cred->bv_val, passwd->bv_len )
+ : 1;
}
-#else
- return 1;
#endif
+ return 1;
+}
+
+struct berval * lutil_passwd_generate( ber_len_t len )
+{
+ struct berval *pw;
+
+ if( len < 1 ) return NULL;
+
+ pw = ber_memalloc( sizeof( struct berval ) );
+ if( pw == NULL ) return NULL;
+
+ pw->bv_len = len;
+ pw->bv_val = ber_memalloc( len + 1 );
+
+ if( pw->bv_val == NULL ) {
+ ber_memfree( pw );
+ return NULL;
+ }
+
+ if( lutil_entropy( pw->bv_val, pw->bv_len) < 0 ) {
+ ber_bvfree( pw );
+ return NULL;
+ }
+
+ for( len = 0; len < pw->bv_len; len++ ) {
+ pw->bv_val[len] = crypt64[
+ pw->bv_val[len] % (sizeof(crypt64)-1) ];
+ }
+ pw->bv_val[len] = '\0';
+
+ return pw;
}
-char * lutil_passwd_generate(
- const char * passwd,
+struct berval * lutil_passwd_hash(
+ const struct berval * passwd,
const char * method )
{
const struct pw_scheme *sc = get_scheme( method );
if( sc == NULL ) return NULL;
- if( ! sc->gen_fn ) return NULL;
+ if( ! sc->hash_fn ) return NULL;
- return (sc->gen_fn)( sc, passwd );
+ return (sc->hash_fn)( sc, passwd );
}
-static char * pw_string(
+static struct berval * pw_string(
const struct pw_scheme *sc,
- const char *passwd)
+ const struct berval *passwd )
{
- size_t pwlen = strlen( passwd );
- char *pw = ber_memalloc( sc->namelen + pwlen + 1 );
-
+ struct berval *pw = ber_memalloc( sizeof( struct berval ) );
if( pw == NULL ) return NULL;
- memcpy( pw, sc->name, sc->namelen );
- memcpy( &pw[sc->namelen], passwd, pwlen );
- pw[sc->namelen + pwlen] = '\0';
+ pw->bv_len = sc->name.bv_len + passwd->bv_len;
+ pw->bv_val = ber_memalloc( pw->bv_len + 1 );
+
+ if( pw->bv_val == NULL ) {
+ ber_memfree( pw );
+ return NULL;
+ }
+ AC_MEMCPY( pw->bv_val, sc->name.bv_val, sc->name.bv_len );
+ AC_MEMCPY( &pw->bv_val[sc->name.bv_len], passwd->bv_val, passwd->bv_len );
+
+ pw->bv_val[pw->bv_len] = '\0';
return pw;
}
-static char * pw_string64(
+static struct berval * pw_string64(
const struct pw_scheme *sc,
- const unsigned char *hash, size_t hashlen,
- const unsigned char *salt, size_t saltlen )
+ const struct berval *hash,
+ const struct berval *salt )
{
int rc;
- char *string = NULL;
+ struct berval string;
+ struct berval *b64 = ber_memalloc( sizeof(struct berval) );
size_t b64len;
- size_t len = hashlen + saltlen;
- char *b64;
- if( saltlen ) {
+ if( b64 == NULL ) return NULL;
+
+ if( salt ) {
/* need to base64 combined string */
- string = ber_memalloc( hashlen + saltlen );
+ string.bv_len = hash->bv_len + salt->bv_len;
+ string.bv_val = ber_memalloc( string.bv_len + 1 );
- if( string == NULL ) {
+ if( string.bv_val == NULL ) {
+ ber_memfree( b64 );
return NULL;
}
- memcpy( string, hash, len );
- memcpy( &string[len], salt, saltlen );
+ AC_MEMCPY( string.bv_val, hash->bv_val,
+ hash->bv_len );
+ AC_MEMCPY( &string.bv_val[hash->bv_len], salt->bv_val,
+ salt->bv_len );
+ string.bv_val[string.bv_len] = '\0';
} else {
- string = (char *) hash;
+ string = *hash;
}
- b64len = LUTIL_BASE64_ENCODE_LEN( len ) + 1;
- b64 = ber_memalloc( b64len + sc->namelen );
+ b64len = LUTIL_BASE64_ENCODE_LEN( string.bv_len ) + 1;
+ b64->bv_len = b64len + sc->name.bv_len;
+ b64->bv_val = ber_memalloc( b64->bv_len + 1 );
- if( b64 == NULL ) {
- if( saltlen ) ber_memfree( string );
+ if( b64->bv_val == NULL ) {
+ if( salt ) ber_memfree( string.bv_val );
+ ber_memfree( b64 );
return NULL;
}
- memcpy(b64, sc->name, sc->namelen);
+ AC_MEMCPY(b64->bv_val, sc->name.bv_val, sc->name.bv_len);
- rc = lutil_b64_ntop( string, len, &b64[sc->namelen], b64len );
-
- if( saltlen ) ber_memfree( string );
+ rc = lutil_b64_ntop(
+ string.bv_val, string.bv_len,
+ &b64->bv_val[sc->name.bv_len], b64len );
+ if( salt ) ber_memfree( string.bv_val );
+
if( rc < 0 ) {
- free( b64 );
+ ber_bvfree( b64 );
return NULL;
}
+ /* recompute length */
+ b64->bv_len = sc->name.bv_len + rc;
+ assert( strlen(b64->bv_val) == b64->bv_len );
return b64;
}
static int chk_ssha1(
const struct pw_scheme *sc,
- const char* passwd,
- const char* cred )
+ const struct berval * passwd,
+ const struct berval * cred )
{
lutil_SHA1_CTX SHA1context;
- unsigned char SHA1digest[20];
- int pw_len = strlen(passwd);
+ unsigned char SHA1digest[LUTIL_SHA1_BYTES];
int rc;
unsigned char *orig_pass = NULL;
- /* base64 un-encode password */
- orig_pass = (unsigned char *) malloc( (size_t) (
- LUTIL_BASE64_DECODE_LEN(pw_len) + 1) );
+ /* decode base64 password */
+ orig_pass = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
- if ((rc = lutil_b64_pton(passwd, orig_pass, pw_len)) < 0) {
- free(orig_pass);
- return 1;
+ if( orig_pass == NULL ) return -1;
+
+ rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
+
+ if(rc < 0) {
+ ber_memfree(orig_pass);
+ return -1;
}
/* hash credentials with salt */
lutil_SHA1Init(&SHA1context);
lutil_SHA1Update(&SHA1context,
- (const unsigned char *) cred, strlen(cred));
+ (const unsigned char *) cred->bv_val, cred->bv_len);
lutil_SHA1Update(&SHA1context,
(const unsigned char *) &orig_pass[sizeof(SHA1digest)],
rc - sizeof(SHA1digest));
/* compare */
rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
- free(orig_pass);
- return rc;
+ ber_memfree(orig_pass);
+ return rc ? 1 : 0;
}
static int chk_sha1(
const struct pw_scheme *sc,
- const char* passwd,
- const char* cred )
+ const struct berval * passwd,
+ const struct berval * cred )
{
lutil_SHA1_CTX SHA1context;
- unsigned char SHA1digest[20];
- char base64digest[LUTIL_BASE64_ENCODE_LEN(sizeof(SHA1digest))+1];
+ unsigned char SHA1digest[LUTIL_SHA1_BYTES];
+ int rc;
+ unsigned char *orig_pass = NULL;
+
+ /* base64 un-encode password */
+ orig_pass = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
+
+ if( orig_pass == NULL ) return -1;
+ rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
+
+ if( rc != sizeof(SHA1digest) ) {
+ ber_memfree(orig_pass);
+ return -1;
+ }
+
+ /* hash credentials with salt */
lutil_SHA1Init(&SHA1context);
lutil_SHA1Update(&SHA1context,
- (const unsigned char *) cred, strlen(cred));
+ (const unsigned char *) cred->bv_val, cred->bv_len);
lutil_SHA1Final(SHA1digest, &SHA1context);
-
- if (lutil_b64_ntop(SHA1digest, sizeof(SHA1digest),
- base64digest, sizeof(base64digest)) < 0)
- {
- return 1;
- }
-
- return strcmp(passwd, base64digest);
+
+ /* compare */
+ rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
+ ber_memfree(orig_pass);
+ return rc ? 1 : 0;
}
static int chk_smd5(
const struct pw_scheme *sc,
- const char* passwd,
- const char* cred )
+ const struct berval * passwd,
+ const struct berval * cred )
{
lutil_MD5_CTX MD5context;
- unsigned char MD5digest[16];
- int pw_len = strlen(passwd);
+ unsigned char MD5digest[LUTIL_MD5_BYTES];
int rc;
unsigned char *orig_pass = NULL;
/* base64 un-encode password */
- orig_pass = (unsigned char *) malloc( (size_t) (
- LUTIL_BASE64_DECODE_LEN(pw_len) + 1) );
+ orig_pass = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
+
+ if( orig_pass == NULL ) return -1;
- if ((rc = lutil_b64_pton(passwd, orig_pass, pw_len)) < 0) {
- free(orig_pass);
- return 1;
+ rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
+ if ( rc < 0 ) {
+ ber_memfree(orig_pass);
+ return -1;
}
/* hash credentials with salt */
lutil_MD5Init(&MD5context);
lutil_MD5Update(&MD5context,
- (const unsigned char *) cred, strlen(cred));
+ (const unsigned char *) cred->bv_val, cred->bv_len );
lutil_MD5Update(&MD5context,
(const unsigned char *) &orig_pass[sizeof(MD5digest)],
rc - sizeof(MD5digest));
/* compare */
rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
- free(orig_pass);
- return rc;
+ ber_memfree(orig_pass);
+ return rc ? 1 : 0;
}
static int chk_md5(
const struct pw_scheme *sc,
- const char* passwd,
- const char* cred )
+ const struct berval * passwd,
+ const struct berval * cred )
{
lutil_MD5_CTX MD5context;
- unsigned char MD5digest[16];
- char base64digest[LUTIL_BASE64_ENCODE_LEN(sizeof(MD5digest))+1];
+ unsigned char MD5digest[LUTIL_MD5_BYTES];
+ int rc;
+ unsigned char *orig_pass = NULL;
+ /* base64 un-encode password */
+ orig_pass = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
+
+ if( orig_pass == NULL ) return -1;
+
+ rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
+ if ( rc != sizeof(MD5digest) ) {
+ ber_memfree(orig_pass);
+ return -1;
+ }
+
+ /* hash credentials with salt */
lutil_MD5Init(&MD5context);
lutil_MD5Update(&MD5context,
- (const unsigned char *)cred, strlen(cred));
+ (const unsigned char *) cred->bv_val, cred->bv_len );
lutil_MD5Final(MD5digest, &MD5context);
- if ( lutil_b64_ntop(MD5digest, sizeof(MD5digest),
- base64digest, sizeof(base64digest)) < 0 )
+ /* compare */
+ rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
+ ber_memfree(orig_pass);
+ return rc ? 1 : 0;
+}
+
+#ifdef SLAPD_SPASSWD
+#ifdef HAVE_CYRUS_SASL
+sasl_conn_t *lutil_passwd_sasl_conn = NULL;
+#endif
+
+static int chk_sasl(
+ const struct pw_scheme *sc,
+ const struct berval * passwd,
+ const struct berval * cred )
+{
+ int i;
+ int rtn;
+
+ for( i=0; i<cred->bv_len; i++) {
+ if(cred->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( cred->bv_val[i] != '\0' ) {
+ return 1; /* cred must behave like a string */
+ }
+
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return 1; /* passwd must behave like a string */
+ }
+
+ rtn = 1;
+
+#ifdef HAVE_CYRUS_SASL
+ if( lutil_passwd_sasl_conn != NULL ) {
+ const char *errstr = NULL;
+ int sc;
+
+ sc = sasl_checkpass( lutil_passwd_sasl_conn,
+ passwd->bv_val, passwd->bv_len,
+ cred->bv_val, cred->bv_len,
+ &errstr );
+
+ rtn = ( sc != SASL_OK );
+ }
+#endif
+
+ return rtn;
+}
+#endif
+
+#ifdef SLAPD_KPASSWD
+static int chk_kerberos(
+ const struct pw_scheme *sc,
+ const struct berval * passwd,
+ const struct berval * cred )
+{
+ int i;
+ int rtn;
+
+ for( i=0; i<cred->bv_len; i++) {
+ if(cred->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( cred->bv_val[i] != '\0' ) {
+ return 1; /* cred must behave like a string */
+ }
+
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return 1; /* passwd must behave like a string */
+ }
+
+ rtn = 1;
+
+#ifdef HAVE_KRB5 /* HAVE_HEIMDAL_KRB5 */
{
- return 1;
+/* Portions:
+ * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H\xf6gskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+ krb5_context context;
+ krb5_error_code ret;
+ krb5_creds creds;
+ krb5_get_init_creds_opt get_options;
+ krb5_verify_init_creds_opt verify_options;
+ krb5_principal client, server;
+#ifdef notdef
+ krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP};
+#endif
+
+ ret = krb5_init_context( &context );
+ if (ret) {
+ return 1;
+ }
+
+#ifdef notdef
+ krb5_get_init_creds_opt_set_preauth_list(&get_options,
+ pre_auth_types, 1);
+#endif
+
+ krb5_get_init_creds_opt_init( &get_options );
+
+ krb5_verify_init_creds_opt_init( &verify_options );
+
+ ret = krb5_parse_name( context, passwd->bv_val, &client );
+
+ if (ret) {
+ krb5_free_context( context );
+ return 1;
+ }
+
+ ret = krb5_get_init_creds_password( context,
+ &creds, client, cred->bv_val, NULL,
+ NULL, 0, NULL, &get_options );
+
+ if (ret) {
+ krb5_free_principal( context, client );
+ krb5_free_context( context );
+ return 1;
+ }
+
+ {
+ char *host = ldap_pvt_get_fqdn( NULL );
+
+ if( host == NULL ) {
+ krb5_free_principal( context, client );
+ krb5_free_context( context );
+ return 1;
+ }
+
+ ret = krb5_sname_to_principal( context,
+ host, "ldap", KRB5_NT_SRV_HST, &server );
+
+ ber_memfree( host );
+ }
+
+ if (ret) {
+ krb5_free_principal( context, client );
+ krb5_free_context( context );
+ return 1;
+ }
+
+ ret = krb5_verify_init_creds( context,
+ &creds, server, NULL, NULL, &verify_options );
+
+ krb5_free_principal( context, client );
+ krb5_free_principal( context, server );
+ krb5_free_cred_contents( context, &creds );
+ krb5_free_context( context );
+
+ rtn = !!ret;
+ }
+#elif defined(HAVE_KRB4)
+ {
+ /* Borrowed from Heimdal kpopper */
+/* Portions:
+ * Copyright (c) 1989 Regents of the University of California.
+ * All rights reserved. The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+ int status;
+ char lrealm[REALM_SZ];
+ char tkt[MAXHOSTNAMELEN];
+
+ status = krb_get_lrealm(lrealm,1);
+ if (status == KFAILURE) {
+ return 1;
+ }
+
+ snprintf(tkt, sizeof(tkt), "%s_slapd.%u",
+ TKT_ROOT, (unsigned)getpid());
+ krb_set_tkt_string (tkt);
+
+ status = krb_verify_user( passwd->bv_val, "", lrealm,
+ cred->bv_val, 1, "ldap");
+
+ dest_tkt(); /* no point in keeping the tickets */
+
+ return status == KFAILURE;
}
+#endif
- return strcmp(passwd, base64digest);
+ return rtn;
}
+#endif /* SLAPD_KPASSWD */
#ifdef SLAPD_CRYPT
static int chk_crypt(
const struct pw_scheme *sc,
- const char* passwd,
- const char* cred )
+ const struct berval * passwd,
+ const struct berval * cred )
{
- return strcmp(passwd, crypt(cred, passwd));
+ char *cr;
+ int i;
+
+ for( i=0; i<cred->bv_len; i++) {
+ if(cred->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( cred->bv_val[i] != '\0' ) {
+ return -1; /* cred must behave like a string */
+ }
+
+ if( passwd->bv_len < 2 ) {
+ return -1; /* passwd must be at least two characters long */
+ }
+
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return -1; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return -1; /* passwd must behave like a string */
+ }
+
+ cr = crypt( cred->bv_val, passwd->bv_val );
+
+ if( cr == NULL || cr[0] == '\0' ) {
+ /* salt must have been invalid */
+ return -1;
+ }
+
+ return strcmp( passwd->bv_val, cr ) ? 1 : 0;
}
-# if defined( HAVE_GETSPNAM ) \
- || ( defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD ) )
+# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
static int chk_unix(
const struct pw_scheme *sc,
- const char* cred,
- const char* p )
+ const struct berval * passwd,
+ const struct berval * cred )
{
-# ifdef HAVE_GETSPNAM
- struct spwd *spwd = getspnam(p);
+ int i;
+ char *pw,*cr;
- if(spwd == NULL) {
- return 1; /* not found */
+ for( i=0; i<cred->bv_len; i++) {
+ if(cred->bv_val[i] == '\0') {
+ return -1; /* NUL character in password */
+ }
+ }
+ if( cred->bv_val[i] != '\0' ) {
+ return -1; /* cred must behave like a string */
}
- return strcmp(spwd->sp_pwdp, crypt(cred, spwd->sp_pwdp));
-# else
- struct passwd *pwd = getpwnam(p);
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return -1; /* NUL character in password */
+ }
+ }
- if(pwd == NULL) {
- return 1; /* not found */
+ if( passwd->bv_val[i] != '\0' ) {
+ return -1; /* passwd must behave like a string */
}
- return strcmp(pwd->pw_passwd, crypt(cred, pwd->pw_passwd));
+ {
+ struct passwd *pwd = getpwnam(passwd->bv_val);
+
+ if(pwd == NULL) {
+ return -1; /* not found */
+ }
+
+ pw = pwd->pw_passwd;
+ }
+# ifdef HAVE_GETSPNAM
+ {
+ struct spwd *spwd = getspnam(passwd->bv_val);
+
+ if(spwd != NULL) {
+ pw = spwd->sp_pwdp;
+ }
+ }
# endif
-# endif
+# ifdef HAVE_AIX_SECURITY
+ {
+ struct userpw *upw = getuserpw(passwd->bv_val);
+
+ if (upw != NULL) {
+ pw = upw->upw_passwd;
+ }
+ }
+# endif
+
+ if( pw == NULL || pw[0] == '\0' || pw[1] == '\0' ) {
+ /* password must must be at least two characters long */
+ return -1;
+ }
+
+ cr = crypt(cred->bv_val, pw);
+
+ if( cr == NULL || cr[0] == '\0' ) {
+ /* salt must have been invalid */
+ return -1;
+ }
+
+ return strcmp(pw, cr) ? 1 : 0;
+
}
+# endif
#endif
-/* PASSWORD CHECK ROUTINES */
-static char *gen_ssha1(
+/* PASSWORD GENERATION ROUTINES */
+
+static struct berval *hash_ssha1(
const struct pw_scheme *scheme,
- const char *passwd )
+ const struct berval *passwd )
{
lutil_SHA1_CTX SHA1context;
- unsigned char SHA1digest[20];
- unsigned char salt[4];
+ unsigned char SHA1digest[LUTIL_SHA1_BYTES];
+ unsigned char saltdata[4];
+ struct berval digest;
+ struct berval salt;
- if( lutil_entropy( salt, sizeof(salt)) < 0 ) {
+ digest.bv_val = SHA1digest;
+ digest.bv_len = sizeof(SHA1digest);
+ salt.bv_val = saltdata;
+ salt.bv_len = sizeof(saltdata);
+
+ if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
return NULL;
}
lutil_SHA1Init( &SHA1context );
lutil_SHA1Update( &SHA1context,
- (const unsigned char *)passwd, strlen(passwd) );
+ (const unsigned char *)passwd->bv_val, passwd->bv_len );
lutil_SHA1Update( &SHA1context,
- (const unsigned char *)salt, sizeof(salt) );
+ (const unsigned char *)salt.bv_val, salt.bv_len );
lutil_SHA1Final( SHA1digest, &SHA1context );
- return pw_string64( scheme,
- SHA1digest, sizeof(SHA1digest),
- salt, sizeof(salt));
+ return pw_string64( scheme, &digest, &salt);
}
-static char *gen_sha1(
+static struct berval *hash_sha1(
const struct pw_scheme *scheme,
- const char *passwd )
+ const struct berval *passwd )
{
lutil_SHA1_CTX SHA1context;
- unsigned char SHA1digest[20];
+ unsigned char SHA1digest[LUTIL_SHA1_BYTES];
+ struct berval digest;
+ digest.bv_val = SHA1digest;
+ digest.bv_len = sizeof(SHA1digest);
lutil_SHA1Init( &SHA1context );
lutil_SHA1Update( &SHA1context,
- (const unsigned char *)passwd, strlen(passwd) );
+ (const unsigned char *)passwd->bv_val, passwd->bv_len );
lutil_SHA1Final( SHA1digest, &SHA1context );
- return pw_string64( scheme,
- SHA1digest, sizeof(SHA1digest),
- NULL, 0);
+ return pw_string64( scheme, &digest, NULL);
}
-static char *gen_smd5(
+static struct berval *hash_smd5(
const struct pw_scheme *scheme,
- const char *passwd )
+ const struct berval *passwd )
{
lutil_MD5_CTX MD5context;
- unsigned char MD5digest[16];
- unsigned char salt[4];
+ unsigned char MD5digest[LUTIL_MD5_BYTES];
+ unsigned char saltdata[4];
+ struct berval digest;
+ struct berval salt;
- if( lutil_entropy( salt, sizeof(salt)) < 0 ) {
+ digest.bv_val = MD5digest;
+ digest.bv_len = sizeof(MD5digest);
+ salt.bv_val = saltdata;
+ salt.bv_len = sizeof(saltdata);
+
+ if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
return NULL;
}
lutil_MD5Init( &MD5context );
lutil_MD5Update( &MD5context,
- (const unsigned char *) passwd, strlen(passwd) );
-
+ (const unsigned char *) passwd->bv_val, passwd->bv_len );
lutil_MD5Update( &MD5context,
- (const unsigned char *) salt, sizeof(salt) );
-
+ (const unsigned char *) salt.bv_val, salt.bv_len );
lutil_MD5Final( MD5digest, &MD5context );
- return pw_string64( scheme,
- MD5digest, sizeof(MD5digest),
- salt, sizeof(salt) );
+ return pw_string64( scheme, &digest, &salt );
}
-static char *gen_md5(
+static struct berval *hash_md5(
const struct pw_scheme *scheme,
- const char *passwd )
+ const struct berval *passwd )
{
lutil_MD5_CTX MD5context;
- unsigned char MD5digest[16];
+ unsigned char MD5digest[LUTIL_MD5_BYTES];
+
+ struct berval digest;
+
+ digest.bv_val = MD5digest;
+ digest.bv_len = sizeof(MD5digest);
lutil_MD5Init( &MD5context );
lutil_MD5Update( &MD5context,
- (const unsigned char *) passwd, strlen(passwd) );
-
+ (const unsigned char *) passwd->bv_val, passwd->bv_len );
lutil_MD5Final( MD5digest, &MD5context );
- return pw_string64( scheme,
- MD5digest, sizeof(MD5digest),
- NULL, 0 );
+ return pw_string64( scheme, &digest, NULL );
+;
}
#ifdef SLAPD_CRYPT
-static char *gen_crypt(
+static struct berval *hash_crypt(
const struct pw_scheme *scheme,
- const char *passwd )
+ const struct berval *passwd )
{
- static const unsigned char crypt64[] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890./";
+ struct berval hash;
+ unsigned char salt[3];
+ int i;
- char *hash = NULL;
- unsigned char salt[2];
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return NULL; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return NULL; /* passwd must behave like a string */
+ }
if( lutil_entropy( salt, sizeof(salt)) < 0 ) {
return NULL;
salt[0] = crypt64[ salt[0] % (sizeof(crypt64)-1) ];
salt[1] = crypt64[ salt[1] % (sizeof(crypt64)-1) ];
+ salt[2] = '\0';
- hash = crypt( passwd, salt );
+ hash.bv_val = crypt( passwd->bv_val, salt );
- if( hash = NULL ) return NULL;
+ if( hash.bv_val == NULL ) return NULL;
+
+ hash.bv_len = strlen( hash.bv_val );
+
+ if( hash.bv_len == 0 ) {
+ return NULL;
+ }
- return pw_string( scheme, hash );
+ return pw_string( scheme, &hash );
}
#endif
projects / openldap / blobdiff